I would say either vernilover or sweetpurple. For those that do not remember sweetpurple, she used to be very active here in the LV forum. Do a search for her collection. It is amazing.
Are we talking biggest... as in SIZE of the person? That'd probably be me, I'm 6'7".
If we are talking size of collection... I only have 4... so if that's the case, I'm out! lol